Stave-machine



(No Model.) 5 Sheets-Sheet 1.

0.- L. GOEHRING. STAYE MAGHINE.

No. 361,869. Patented Apr, 26, 1887.

W v EU (No Model.) 5 Sheets-Shet 2, G. L. GOEHRING.

Patented Apr. 26, 1887.

STAVE MACHINE.

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(No Model.) 5 Sheets-Shet s.

' 0. L. GOEHRING.

STAVE MACHINE.

.No 361,869. Patented Apr. 26, 1887.

(No Model.) 5 Sheets-Sheet 4.

G. L. GOEHRING. STVAVE MACHINE.

No. 361,869. Patented Apr. 26, 1887.

of Fig. 1.

. UNITED STATES PATENT Fries.

CHARLES L. GOEHRING, OF ALLEGHENY, PENNSYLVANIA.

STAVE-MACHINEL SPECIFICATION forming part. of Letters Patent No. 361,869, dated April 26, 1887.

Application filed January 6, 1887. Serial No. 223,562. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES L.GOEHRING, of Allegheny, in thecounty of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in StaVeMachines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in stave-machines; and it consists in the arrangement and combination of parts, which will be more fully described hereinafter, and set forth in the claims. I

The object of my invention is to produce a machine which will dress staves upon both sides or edges at the same time and give them the shape of the pattern used; to protect the pattern, and the friction-rollers which bear against it, from shavings or dirt which drop down upon it through the top of the machine,- to rigidly brace the supporting-guides upon which the slide moves back and forth, so as to prevent any displacement; to provide the slide with stop-pins for operating the belt-shifting mechanism, so as to regulate the point at which the slide shall reverse its movement,'and to provide spring actuated catches which close across the opening in the top of the table, so as to prevent the stave, when it is not carried off, from dropping down through the table upon the machinery below.

Figure 1 is a longitudinal vertical section of a machine embodying my invention, taken on the dotted line 1 l of Fig. 2. Fig. 2 isalongitudinal horizontal section taken on the line 2 2 Fig. 3 is a vertical cross-section of the frame and supports alone. Fig. 418 a Vertical cross-section taken on the line 33 of Fig. 2. Fig. 5 is a vertical cross-section of the belt shifting mechanism. Fig. 6 is a longitudinal vertical section showing the mechanism for operating the dogs. Fig. 7 is an enlarged detail view of the spring-catches and the rollers upon the top of the table. Figs. 8 and 9 are detail views showing rollers of different forms.

Fig. 10 is a detail of the slide and the reversing-lever.

A represents the stationary frame or table,

which may be of any desired construction and which has the longitudinal slot or opening B made through its top, and in which the sliding table 0 moves back and forth in the usual manner. Secured to the under side of the top of the table at suitable distances apart are the hangers or supports D, which have their lower ends secured to the two supporting-guides E, which are provided with flanges upon their inner edges, as shown in Fig. 3, so as to catch in the opposite sides of the slide F, and thus support it in position as it is moved back and forth between them. These supporting-guides E are connected together by suitable braces, G, and these braces are suitably braced in position by other braces, H, as shown. Connected to the hangers D are also suitable braces, I, so as to secure them rigidlyin place. As shown in Fig. 3, the hangers D and the supports E are rigidly bracedin position, so that they will allow the slide F no lateral play or movement whatever. This slide is connected to the sliding table by means of an upright,.K, at each end, so that the table and the slide are rigidly connected and always moved together.

Secured upon the slide F, and raised a slight distance above it, is the pattern J, which will have the exact shape or outline which is to be given to the edges or sides of the pieces of lumber which are being dressed. The pattern J is raised slightly above the slide F, as shown in Fig. 1, so as to bring the pattern in a direct line with the friction-rollers which are to bear against its opposite edges, and which rollers serve to regulate the distance between the in ner edges of the carriages which carry the spindles and cutters.

In order to prevent any of the shavings or other dirt from falling through the opening B in the top of the table upon this pattern and getting between the friction-rollers, and thus causing uneven work, the cover L is secured upon the top of the pattern, which cover projects beyond the edges of the pattern, as shown, so as to catch any dirt or shavings which would otherwise have fallen upon the pattern. The edges of the cover L project a suitable distance beyond the edges of the pattern J and extend into suitable grooves made to receive them immediately over the frictionrollers in the two carriages. By having the ICO it or between it and the friction-rollers M.

The slide F; the pattern J, and the sliding table are all moved'back and forth by means of the rack, which is formed upon the under side of the slide F, and the pinion N, which is secured to the shaft 0, which extends across under the table A near its center, and which is journaled in suitable bearings which are provided therefor. Upon this shaft 0, near its outer end, are rigidly secured the two spurwheels. P Q, of different diameters,'so as to. cause the pinion to revolve at one rate of speed when the piece of lumber is being moved between the cutters to' be dressed and at another rate of speed when the sliding table is moved backward to receive another piece. The ob- 2o ject in having the sliding table to move at different rates of speed is to have the lumber move slowly between. the cutters, and when the carriage is emptied to move backward about two and one-fourth times as fast as it was moved forward, for the purpose of saving time. The smaller wheel, P, meshes with the wheel R, which is rigidly fastened to the shaft S. The larger wheel, Q, meshes with the wheel V upon the third shaft, W, and this wheel V in turn meshes with the smaller wheel,T,which v is loosely placed upon the shaft S and has the pulley U cast, formed, or rigidly secured to its hub. The wheel T and the inside pulley, U, being rigidly secured togetherand loosely placed upon the shaft S, always revolve together. Upon the shaft S are placed the three pulleysUX Y, of which the pulleyX revolves idly upon the shaft'S, while the one Y is rigidly secured to it. When the belt is .upon the pulley Y, the shaft S is being driven so as to cause the wheel R to impart motion to the shaftOth rough the wheel P, and thus move the carriage back at a rapid rate of speed. When the belt isshifted upon the idle-pulley X, the slide and all of its attachments remain station-' ary. When thebeltisshifted upon theinnerpulley, U, the small wheel T is caused to communicate motion through the two large wheels V Q, to the shaft 0, and thus move the slide and its attachments slowly'forward. The motion of the slide automatically shifts the belt, so as to alternately move the slide first in one direction and then in the other. In the under side of the slide are made a suitable number of holes,

,Z, in which a pin at each end is placed, and which pins can be changed from one hole to the other, according to the distance it is desired the slide is to travel each way. This pin A projects downward from the under side of the slide just far enough to strike against the inner end of the lever B, which is pivoted upon any suitable support and which has its outer end connected to the cranked and slotted lever G by means of the connecting-rod D. The lever 0 is pivoted upon the under side of one of the guiding-supports E, and is connected at its inner end to the rod D, which shifts the belt, this inner end of the lever being slotted,so as to allow a free movement upon the rod D. When the slide reaches the end of its travel in one direction, the pin A at that end strikes against the lever B and shifts the belt from one pulley to the other, thus causing the slide to reverse its movement.

The two carriages F, which carry the spin- -ble guides, J, which are rigidly secured to the supportingguides E, and which extend at right angles thereto. These guides J are separated a suitable distance at their inner ends to allow the pattern J to move freely back and forth between them. The inner ends of the car: riages project aslight distance inward beyond these guides J, so that the friction-rollers K, j ournaled in their inner edges, will bear against the pattern J, and thus regulate the distance between the carriages and the cutters upon the upper ends of the spindles. Placed in a direct line with the friction-rollers K are suitable springs, L, which serve to keep the carriages and spindles forced inward toward each other, and which springs have their tension regulated by means of the screw-rods M, provided with suitable hand-wheels, N, or other regulating devices. As the belts are applied to the pulleys G,the carriages are provided with frictionrollers Oin one edge, so as to bear against the guides J upon that side,'and thus lessen the friction as much as possible. No friction-rollers are needed upon the other side, because the belts do not exert their pull in that direction. As the carriages. are caused to move in and out by the pattern J between th.em,the cutters H are caused to move correspondingly, and thus give the shape of the pattern to the piece of lumbei which is being'dressed. Through the top of the table or frame A are made suitable slots, a, through which the upper ends of the spindles move for the purpose ofadjusting the'cutters in relation to each other.

Secured to the upper portion of each carriage is a friction-roller, P, which bears against a suitable flange, Q, which extends partially across the table on each side of the op'eningB, for the purpose of preventing the outer ends of the spindles from binding in the slots through which their upper ends pass and-to .keep the carriages from any tendency to tilt at their upper ends, owing to the pressure of the belts.

A, and upon the top of this sliding table 0 is" placed thegrooved plate or piece of wood It, upon which the stave or other piece of lumber to be dressed is placed by being passed between the two cutters H. Where a fiat stave is simply having its edges dressed, rollers S are necessary in order to hold the stave'down in position 5 but where the staves are being dressed upon their sides these rollers S will not be needed. The staves or pieces of lumber to be dressed will in all cases be held between the spring-actuated dog T and the automaticallyoperating dog U, as fully shown and described in my patent which bears date January 11, 1887. There is no difference between these dogs as here shown and what is fully shown, described,and claimed in said patent, and hence they need not be more fully described in this connection. here thestaves are being dressed upon their edges only, dogs which are much shorter above the top of the table are used than where staves are being dressed upon opposite sides, as shown in Fig. 6. Dogs of different lengths, but of exactly the same construction,

or are used upon the same machine and are made interchangeable.

Pivoted upon opposite sides of the opening B through the top of the frame or table are the spring-actuated catches V, which, as the sliding table is moved between them, open out into the position shown in solid lines in-Fig.

7, but which snap back' into the position across the opening B, as shown in dotted lines in Fig. 7. The distance these catches shall move backward over the opening B is regulated by the stops W, placed upon the top of the frame A, and against which the projections upon the catches strike. The object of these catches V is to snap back across the opening B in the position shown in dotted lines in Fig. 7, and thus form bridges across the opening B, to prevent a stave or any large object from falling through the opening B upon the machinery below. These catches V come into play as the sliding table 0 moves back for another stave, and the rollers X, which are to carry the stave away after having been dressed, refuse from any accident to catch thestave and carry it away from the table A. If the stave is caught and carried away by the rollers X, the catches V do not come into play with that stave, but simply snap across the opening B. The rollers X are journaled in suitable springactuated bearings, so as to be always forced toward each other, and are provided with wide flanges at their lower edges, so as to catch under opposite edges of the plate R, which is secured upon the top of the sliding table 0. These rollers are forced toward each other sufficiently far to catch any stave which is being dressed and with suflicient force to catch against opposite sides or edges of the stave and carry it away from the table. These rollers are driven by suitable belts which extend backward from the table, and which are driven from any suitable driving source. The flanges on the lower edges of the rollers catch under the stave which has been dressed and serve to prevent it from dropping down through the opening B upon the machinery below. Where the rollers X fail, for any reason, to properly catch the stave and carry it away, the catches V, by snapping across the opening B, as shown in dotted lines in Fig. 7, form supports to hold the stave in position until the sliding table 0 makes another movement and pushes the stave on between the rollers X. As shown in Fig. 8, flanged rollers are used for operating upon flat staves; but where the staves are being dressed upon opposite sides and are held in avertical position, as shown in Fig. 9, straight rollers alone are used. These rollers X will be made of rubber or any other suitable material which will serve to catch the staves, as here shown and described. The frames in which the rollers X are journaled may be constructed as here shown or in any other way that may be preferred.

Having thus described my invention, I claim 1. In a stave-machine, the combination of the hangers D, the supporting-guides secured to their lower ends, and the curved brace G, for connecting the guides together, with the slide, pattern, sliding table, and a mechanism. for moving the slide back and forth between its guides, substantially as shown.

2. The combination of the frame A, having the longitudinal opening through its top, the sliding table, and a mechanism for moving it back and forth, with the spring actuated catches placed upon the top of the table and between which the table moves, and rollers for carrying away the .piece of dressed lumber, substantially as shown.

3. The combination of the supports, the slide placed between them, a mechanism for moving it back and forth, the pattern placed upon the top of the slide, and a cover which is secured to the top of the pattern to protect it from dirt and shavings, substantially as de scribed.

4. The combination of the frame, the opening through the top of the frame, the sliding table, the spring-actuated catches placed upon both sides of the opening, and the springactuated flanged rollers, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES L. GOEHRING.

Witnesses:

B. LEWIS BLAoKFoR-D, A. S. PATTISON. 

